drm/radeon: Use drm_fb_helper_lastclose() and _poll_changed()

This driver can use drm_fb_helper_lastclose() in its .lastclose function.
It can also use drm_fb_helper_output_poll_changed() as its
.output_poll_changed callback.

Cc: Alex Deucher <[e-mail]>
Cc: "Christian König" <[e-mail]>
Signed-off-by: Noralf Trønnes <[e-mail]>
Acked-by: Daniel Vetter <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/radeon/radeon_display.c

···
 
 #include <linux/pm_runtime.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_edid.h>
 
···
 	return &radeon_fb->base;
 }
 
-static void radeon_output_poll_changed(struct drm_device *dev)
-{
-	struct radeon_device *rdev = dev->dev_private;
-	radeon_fb_output_poll_changed(rdev);
-}
-
 static const struct drm_mode_config_funcs radeon_mode_funcs = {
 	.fb_create = radeon_user_framebuffer_create,
-	.output_poll_changed = radeon_output_poll_changed
+	.output_poll_changed = drm_fb_helper_output_poll_changed,
 };
 
 static const struct drm_prop_enum_list radeon_tmds_pll_enum_list[] =

drivers/gpu/drm/radeon/radeon_fb.c

···
 	return ret;
 }
 
-void radeon_fb_output_poll_changed(struct radeon_device *rdev)
-{
-	if (rdev->mode_info.rfbdev)
-		drm_fb_helper_hotplug_event(&rdev->mode_info.rfbdev->helper);
-}
-
 static int radeon_fbdev_destroy(struct drm_device *dev, struct radeon_fbdev *rfbdev)
 {
 	struct radeon_framebuffer *rfb = &rfbdev->rfb;
···
 {
 	if (rdev->mode_info.rfbdev)
 		drm_fb_helper_remove_one_connector(&rdev->mode_info.rfbdev->helper, connector);
-}
-
-void radeon_fbdev_restore_mode(struct radeon_device *rdev)
-{
-	struct radeon_fbdev *rfbdev = rdev->mode_info.rfbdev;
-	struct drm_fb_helper *fb_helper;
-	int ret;
-
-	if (!rfbdev)
-		return;
-
-	fb_helper = &rfbdev->helper;
-
-	ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
-	if (ret)
-		DRM_DEBUG("failed to restore crtc mode\n");
 }

drivers/gpu/drm/radeon/radeon_kms.c

···
  *          Jerome Glisse
  */
 #include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
 #include "radeon.h"
 #include <drm/radeon_drm.h>
 #include "radeon_asic.h"
···
  */
 void radeon_driver_lastclose_kms(struct drm_device *dev)
 {
-	struct radeon_device *rdev = dev->dev_private;
-
-	radeon_fbdev_restore_mode(rdev);
+	drm_fb_helper_lastclose(dev);
 	vga_switcheroo_process_delayed_switch();
 }
 

drivers/gpu/drm/radeon/radeon_mode.h

···
 void radeon_fbdev_fini(struct radeon_device *rdev);
 void radeon_fbdev_set_suspend(struct radeon_device *rdev, int state);
 bool radeon_fbdev_robj_is_fb(struct radeon_device *rdev, struct radeon_bo *robj);
-void radeon_fbdev_restore_mode(struct radeon_device *rdev);
-
-void radeon_fb_output_poll_changed(struct radeon_device *rdev);
 
 void radeon_crtc_handle_vblank(struct radeon_device *rdev, int crtc_id);